Machine for cutting out circular or elliptical forms.



No. 873,395. 1 PATENTED 1350.10, 1907.

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MACHINE-FOR CUTTING OUT GIRGULAB. 0R ELLIPTICAL FORMS.

APPLICATION FILED 3111.10. 1906. I

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No. 873,395. PATENTED DEC. 10, 1907.

0. 0. WAIS. I MACHINE FOR CUTTING OUT CIRCULAR 0R ELLIPTIGALFORMS.

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APPLICATION FILED J-AN.10. 1906.

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MACHINE FOR CUTTING OUT CIRCULAR 0R ELLIPTICAL FORMS.

APPLICATION FILED JAN. 10. 190g asHEETs-smra a.

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IINITED STATES PATENT OFFICE.

CHARLES CHRISTIAN WAIS, OF OAKLEY, OHIO.

MACHINE FOR CUTTING OUT CIRCULAR OR ELLIPTICAL FORMS.

To all whom it may concern:

Be it known that 1, CHARLES CHRISTIAN WAIS, a citizen of the United States of America, and resident of Madison and Gilmore avenues, Oakley, county of Hamilton and State of Ohio, (post-oflice address Plum and Pearl streets, in thecity of Cincinnati, county of Hamilton, and State of Ohio,) have invented an Improvement in Machines for Outting Out Circular or Elliptical Forms; and I do hereby declare the following to be a full and exact description thereof, reference being had to the accompanying drawings, making part of this specificatio 'My invention relates to machines for cutting out circular or elliptical forms, and it has for its object the improvement in the construction of such devices whereby they are simplified and rendered more efficient in action.

The novelty of my invention consists in the combination and sub-combination of the parts as will be hereinafter set forth and spe cifieallypointed out in the claims.

Figure 1 is a side elevation of my boring, turning and facing machine for circular elliptical and other irregular forms. Fig. 2 is a front elevation. Fig. 3 is a section on line 33 of Fig. 2. Fig. 4 is a front View of the tool carrying head. Fig. 5 is a section on line 5-5 of Fig. 2. Fig. 6 is a section on line 66 of Fig. 1. Fig. 7 is a bottom view of the tool holder. Fig. 8 is a diagrammatic sketch showing how the spindle works when the back gear is out. Fig. 9 is a diagrammatic sketch showing the path of the tool when the back gear is out, and cam is not in action. Fig. 10 is a diagrammatic sketchshowing back gear in, and power transmitted from back gear to gear on spindle by oneidler, the back gear and gear on spindle being the same diameter. Figs. 11, 12 and 13 are examples of paths the tool will take under varying ratios between the radius of tool from spindle center and throw of eccentric,

with Fig. 10 gearing. Fig. 14 is a diagrammatic sketch showing back gear in, and power transmitted from back gear to, gear on spindle by one idler, the back gearbeing half the diameter of the gear on spindle. Fig. 15 shows path the tool will take witha certain ratio existing between the radius of tool from spindle center and throw of eccentric with Fig. 14 gearing. Other paths can be traced with Fig. 14 gearing by changing the ratio between radius of tool from spindle cen- Patented Dec. '10, 1907.

ter and throw of eccentric. Fig. 16 is a diagr'ammatic sketch showing back gear in, and power transmitted from back gear to gear on spindle by two idlers, the back gear being half the diameter of the gear on spindle. Fig.- 17 shows path the tool will take with a certain ratio existing between the radius of tool from spindle center and throw of eccen-. trio with Fig. 16. gearing. Other paths can be traced with Fig. 16 gearing by changing the ratio between radius of tool from spindle center and throw of eccentric. Fig. 18 is a diagrammatic sketch showing back gear in, and power transmitted from back gear to gear on spindle by one idler, the back gear being one-third the diameter of the gear on spindle. Fig. 19 shows path the tool will take with a certain ratio existing between the radius .of tool from spindle center and throw of eccentric with Fig. 18 gearing. Other paths can be traced with Fig. 18 gearing by changing the ratio between radius of tool from spindle center and throw of eccen tric. Fig. 20 is a partial section of cam E, showing how gear C, is clamped to cam E.

Similar letters indicate like parts in the several drawings.

A represents the frame of my boring, turning and facing machine for circular elliptical and other irregular forms;

A is the base.

A is the table.

A and A is a tight and-loose pulley.

A and 'A are cone pulleys for changing speeds.

A is a shaft for transmitting power to the bevel gearing A", A A.

A A A, A are spur gears'for communicatingpower from, bevel gearsto main spindle A A is a cone pulley on top of spindle A for transmitting power to cone pulley A Cone pulley A transmits power through shaft A and gears A A and shaft A to feed mechanism A 3 The main spindle A has near its top a gear A which transmits power to the vertical shaft B through gears The gear C can be cam to any desired position andtightening the nuts again. The cam E has a slot E which permits the throw of the cam to be changed. The cam. strap E is attached to the tool holder G so that when the cam E turns the tool holder G will slide back and forth according to the throw of the cam as well as turning around with the spindle A The tool holder G slides back and forth on the slide F. Attached to the sleeve C is a'rack H, which meshes with a pinion H the pinion H is pivoted to the arm I, which projects from the front of the frame A. By turning the pinion the sleeves C can be raised or lowered as may be desired.

The operation of my machine is as follows. Power is transmitted in a suitable manner to the spindle A From spindle A power is transmitted to the upright spindle B, through the gear 13 causing the spindle B, to revolve in the same direction as spindle A The lower end of the shaft or spindle B, has a gear B which meshes with gear C, the gear C turns loosely on the sleeve C but the shaft B being geared to the gear 0, direct it causes the gear C to revolve in the opposite direction from which the shaft B, revolves. The

I spindle A revolves the same as shaft B, on

the spindle A the tool holder is attached. The cam E, when set at the throw desired will be clamped to the gear 0, when thecam will revolve in the opposite direction.

-When operated in this manner an ellipse can be cut out of a plate by the tool, when forced down on to the work by means of the rack and pinion H, I-I

With my machine it is possible to have the cutting tool revolve in the same direction that the cam does, or it can be geared ta revolve in the opposite direction from the cam.

Although my machine is well adapted for cutting out irregular forms from plate metal, it is also suited for turning an indefinite number of forms for ornamental figures on watch cases, silver ware, and similar articles.

Having described my invention what I claim is:

1. In a machine of the class described, the combination of a rotatable shaft, a tool holder supported by and rotating with said shaft, a cam adapted to impart lateral motion to the tool holder, and mechanism driven by said shaft to rotate said cam, all substantially as described.

2. In a machine of the class described, the combination of a rotatable shaft, a tool holder supported by and rotating with said shaft, a cam adapted to impart lateral n1otion to the tool holder, means for changing the throw of the cam, and mechanism driven by said shaft to rotate said. cam, all sub stantially as described.

3. In a machine of the class described, the combination of a rotatable shaft, a tool holder supported by and rotating with said shaft, means for adjusting the tool, a cam adapted to impart lateral motion to the tool holder, means for changing the throw of the cam, and mechanism driven by said shaft to rotate said cam, all substantially as described.

CHRIST. WAIS.

Witnesses:

I'I. KRONE, J. RAY Form. 

